Patent US4565193A successfully refreshed from Google Patents.
US4565193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pronged plate for resetting fractured bones
Assignee: Individual
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Filing: 1983-09-12
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Granted: 1986-01-21
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Expires: 2003-09-12
Abstract
Abstract A pronged plate for fixing bone parts together at a bone fracture in the region of an articulation has prongs projecting transversely from one end of the plate, which is elongate to lie along a limb bone, and has perforations to receive securing screws to be screwed into the bone. To prevent the articular part of the bone from slipping off the prongs when loaded in use, the axes of the prongs are arranged to make an angle of about 20° with the plane which is perpendicular to the elongate part of the plate and contains the longitudinal axis of the plate.
Inventors
- 👤 Elke Streli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:56
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/80; A61B17/809
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
120 words
A pronged article for fixing bone parts in position together at a bone fracture in the region of an articulation, comprising an elongated plate having a longitudinal axis and adapted to lie along one of said bone parts, said plate being transverse to a longitudinal plane including said axis and having a plurality of prongs projecting transversely from one end of the plate, said plate having a plurality of apertures formed therein for receiving plate fixating means for securing said plate to said one of said bone parts, said plate being characterised by the improvement wherein the axes of said prongs, when extended to intersect said longitudinal plane, each include angles of between 10° and 30° with said longitudinal plane.
Claim 2
Dependent Claim
120 words
A pronged article for fixing bone parts in position together at a bone fracture in the region of an articulation, comprising an elongated plate having a longitudinal axis and adapted to lie along one of said bone parts, said plate being transverse to a longitudinal plane including said axis and having a plurality of prongs projecting transversely from one end of the plate, said plate having a plurality of apertures formed therein for receiving plate fixating means for securing said plate to said one of said bone parts, said plate being characterised by the improvement wherein the axes of said prongs, when extended to intersect said longitudinal plane, each include angles of between 10° and 30° with said longitudinal plane.
Claim 3
Dependent Claim
36 words
A pronged article claimed in claim 1 wherein said axes of said prongs adjacent said plate are substantially coplanar in a further plane which intersects said longitudinal plane with an included angle of less than 90°.
Claim 4
Dependent Claim
21 words
A pronged article as claimed in claim 2 wherein said included angle of said further plane is an angle of 80°.
Claim 5
Dependent Claim
16 words
A pronged article as claimed in claim 1 wherein said plurality of prongs comprises four prongs.
Claim 6
Dependent Claim
49 words
A pronged article as claimed in claim 1, wherein said plate over its entire longitudinal extent, has a width which steadily increases in the direction of the prongs, the width in the region of the prongs being at least 1.5 times that in the region of the other end.
Claim 7
Dependent Claim
18 words
A pronged article as claimed in claim 5, wherein said plate is bent outwards at its wider region.
Claim 8
Dependent Claim
28 words
A pronged article as claimed in claim 5 wherein said width in the region of said prongs is three times that in the region of said other end.
Claim 9
Dependent Claim
36 words
A pronged article in claim 1 wherein at least one of said apertures is provided for receiving a screw which can be inserted into an articular bone part, in a region directly adjacent to the prongs.
Claim 10
Dependent Claim
20 words
A pronged article as claimed in claim 1 wherein at least one of the apertures is shaped as a slot.
Claim 11
Dependent Claim
22 words
A pronged article as claimed in claim 9 wherein said at least one aperture is the aperture furthest away from said prongs.
Claim 12
Dependent Claim
31 words
A pronged article as claimed in claim 1 said axes of said prongs lie generally in a transverse plane which includes an angle of 65° to 80° with said longitudinal axis.
Claim 13
Dependent Claim
30 words
A pronged article as claimed in claim 1 wherein said longitudinally extending part of said plate is formed with a laterally projecting, curved lug which is provided with a bore.
Claim 14
Dependent Claim
27 words
A pronged article as claimed in claim 1 wherein said angle included by the axes of said prongs with said plane is an angle of about 20°.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |